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https://issues.apache.org/jira/browse/SOLR-3512?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andy Laird updated SOLR-3512:
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Issue Type: New Feature (was: Improvement)
> Create API for managing nodes within SolrCloud
> ----------------------------------------------
>
> Key: SOLR-3512
> URL: https://issues.apache.org/jira/browse/SOLR-3512
> Project: Solr
> Issue Type: New Feature
> Components: SolrCloud
> Affects Versions: 4.0
> Reporter: Andy Laird
>
> Currently there does not seem to be any "clean" way to remove a particular
> Solr node from a ZooKeeper collection running in SolrCloud. I watched the
> talk at Lucene Revolution 2012 about this area and it seems like the
> recommended approach at present is to just shut down the node. This is
> problematic for a couple reasons: one is that it creates a reliance on the
> ZK config (how soon will ZK know that the node is gone?) and creates a
> potentially bad user experience (how many queries will get sent to the node
> that was just shut down before the next tick elapses?). It also makes it
> impossible to use the node in an "offline" state -- for example, if something
> went wrong on the box it might be good to look at a dump of the running
> process, etc. but if it's turned off we can't easily do that.
> Ideally there could be a series of core commands/primitives that one could
> issue to any Solr node to do things like remove a node from a ZK collection,
> re-connect to a ZK instance, a particular collection, etc. It might also be
> useful to be able to start up a Solr node without initially connecting to ZK.
> I looked at [SOLR-3488|http://issues.apache.org/jira/browse/SOLR-3488] but
> that issue seems more related to managing collections within ZK, not so much
> about nodes within a particular collection. Apologies if these topics are
> covered there.
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